Re: annoying query/planner choice
От | Andrew Rawnsley |
---|---|
Тема | Re: annoying query/planner choice |
Дата | |
Msg-id | 83C6D7BA-44B4-11D8-8262-000393A47FCC@ravensfield.com обсуждение исходный текст |
Ответ на | Re: annoying query/planner choice (Dennis Bjorklund <db@zigo.dhs.org>) |
Список | pgsql-performance |
Low (1000). I'll fiddle with that. I just noticed that the machine only has 512MB of ram in it, and not 1GB. I must have raided it for some other machine... On Jan 11, 2004, at 10:50 PM, Dennis Bjorklund wrote: > On Sun, 11 Jan 2004, Andrew Rawnsley wrote: > >> 20-25% of the time. Fiddling with CPU_TUPLE_COST doesn't do anything >> until I exceed 0.5, which strikes me as a bit high (though please >> correct me if I am assuming too much...). RANDOM_PAGE_COST seems to >> have >> no effect. > > What about the effective cache size, is that set properly? > > -- > /Dennis Björklund > > > ---------------------------(end of > broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to > majordomo@postgresql.org > -------------------- Andrew Rawnsley President The Ravensfield Digital Resource Group, Ltd. (740) 587-0114 www.ravensfield.com
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